Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Unity - The multiplatform game creation tools for everyone.
Quixel Mixer - Mixer is a PBR creation suite that uses brushes and non-destructive layering to generate all types of maps.
Godot Engine - Feature-packed 2D and 3D open source game engine.
3D-Coat - 3D-Coat is the one application that has all the tools you need to take your 3D idea from a block of digital clay all the way to a production ready, fully textured organic or hard surface model.
Mudbox - Autodesk Mudbox digital sculpting and texture painting software provides 3D artists with an intuitive toolset for creating highly detailed 3D geometry and textures.